Dad duties done, ministers take the oath

First day of school duties for one MP delayed the government's swearing-in ceremony on Monday morning, but Julia Gillard's revamped ministerial line up can now assume their new roles.

Governor-General Quentin Bryce swore in the Prime Minister's new-look team including Brendan O'Connor who takes on the difficult immigration portfolio.

Before he was sworn in, Ms Gillard noted that the ceremony had been pushed back to allow Mr O'Connor to take his daughter to her first day of school.

''All the very best to you, Minister,'' Ms Bryce said to Mr O'Connor.

New Attorney-General Mark Dreyfus, who replaces Nicola Roxon after her surprise resignation, beamed as he took on the key legal role and a spot in cabinet. But the QC managed to confuse Ms Bryce by bringing his own pen.

A Labor caucus meeting in Canberra on Monday afternoon will decide who will replace Chris Evans – who resigned from the frontbench along with Ms Roxon – as Senate leader.

It is understood caucus will elect Communications Minister Stephen Conroy, from the Victorian Right, as the new Senate leader and Finance Minister Penny Wong, from the Left, will become Senate deputy.On Saturday, Ms Gillard said she expected to take her new-look ministry to the election on September 14.

As the team was sworn, Labor woke up to more poor poll news on Monday.

In the latest Newspoll, the Coalition leads Labor, 56 per cent to 44 per cent on a tw0-party-preferred basis.

Opposition Leader Tony Abbott has also gained significant ground in the preferred prime minister stakes. Ms Gillard is still ahead, 41 per cent to 39 per cent, but the gap has narrowed from 45 per cent to 33 per cent in the January 11-13 poll.